checks.py 文件源码

def visit_ExceptHandler(self, node):
        node_name = None
        if isinstance(node.name, ast.Name):
            # Python 2
            node_name = node.name.id
        elif isinstance(node.name, str):
            # Python 3
            node_name = node.name
        if node_name in builtin_exception_types:
            yield self.tag(node, 'except-shadows-builtin', node_name)
        if node.type is None:
            ex_types = []
        elif isinstance(node.type, ast.Tuple):
            ex_types = list(node.type.elts)
        else:
            ex_types = [node.type]
        for ex_type in ex_types:
            while isinstance(ex_type, ast.BinOp):
                ex_type = ex_type.left
            if isinstance(ex_type, ast.Str):
                yield self.tag(node, 'string-exception')
                break
        for t in self.generic_visit(node):
            yield t